dac fw module

1 files changed, 37 insertions, 0 deletions

diff --git a/fw/tests/system/dac_systest.c b/fw/tests/system/dac_systest.c
new file mode 100644
index 0000000..8653f96
--- /dev/null
+++ b/fw/tests/system/dac_systest.c
@@ -0,0 +1,37 @@
+#include <xc.h>
+
+#include <stdint.h>
+
+#include "system.h"
+#include "types.h"
+#include "spi.h"
+#include "dac.h"
+
+void
+main(void) {
+	sysInit();
+	spiInit();
+	dacInit();
+
+	dacSet1a((U16){0u, 252u}); // 1.23V
+
+	for (;;) {
+
+	}
+}
+
+void
+__interrupt() isr(void) {
+	static U8 ctr = 0u;
+	static U16 level = {0, 0};
+
+	if (TMR1IF) {
+		ctr++;
+		if (ctr == 23u) { // 1s period
+			ctr = 0u;
+			dacSet1a(level);
+			addU16(&level, 50u);
+		}
+		TMR1IF = 0;
+	}
+}